


/// <reference name="MicrosoftAjax.js" />

(function() {
var scriptName = "ExtendedTimer";

function execute() {

var version = Sys.version;
if (!version && !Sys._versionChecked) {
    Sys._versionChecked = true;
    throw new Error("AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the AjaxScriptManager in System.Web.Ajax.dll, or use the ToolkitScriptManager in AjaxControlToolkit.dll.");
}

///////////////////////////////////////////////////////////////////////////////
// Sys.Timer

Sys.Timer = function() {
    Sys.Timer.initializeBase(this);
    
    this._interval = 1000;
    this._enabled = false;
    this._timer = null;
}

Sys.Timer.prototype = {
    get_interval: function() {
        
        return this._interval;
    },
    set_interval: function(value) {
        
        if (this._interval !== value) {
            this._interval = value;
            this.raisePropertyChanged('interval');
            
            if (!this.get_isUpdating() && (this._timer !== null)) {
                this._stopTimer();
                this._startTimer();
            }
        }
    },
    
    get_enabled: function() {
        
        return this._enabled;
    },
    set_enabled: function(value) {
        
        if (value !== this.get_enabled()) {
            this._enabled = value;
            this.raisePropertyChanged('enabled');
            if (!this.get_isUpdating()) {
                if (value) {
                    this._startTimer();
                }
                else {
                    this._stopTimer();
                }
            }
        }
    },

    
    add_tick: function(handler) {
        
        
        this.get_events().addHandler("tick", handler);
    },

    remove_tick: function(handler) {
        
        
        this.get_events().removeHandler("tick", handler);
    },

    dispose: function() {
        this.set_enabled(false);
        this._stopTimer();
        
        Sys.Timer.callBaseMethod(this, 'dispose');
    },
    
    updated: function() {
        Sys.Timer.callBaseMethod(this, 'updated');

        if (this._enabled) {
            this._stopTimer();
            this._startTimer();
        }
    },

    _timerCallback: function() {
        var handler = this.get_events().getHandler("tick");
        if (handler) {
            handler(this, Sys.EventArgs.Empty);
        }
    },

    _startTimer: function() {
        this._timer = window.setInterval(Function.createDelegate(this, this._timerCallback), this._interval);
    },

    _stopTimer: function() {
        window.clearInterval(this._timer);
        this._timer = null;
    }
}

Sys.Timer.descriptor = {
    properties: [   {name: 'interval', type: Number},
                    {name: 'enabled', type: Boolean} ],
    events: [ {name: 'tick'} ]
}

Sys.Timer.registerClass('Sys.Timer', Sys.Component);

} // execute

if (window.Sys && Sys.loader) {
    Sys.loader.registerScript(scriptName, ["ComponentModel"], execute);
}
else {
    execute();
}

})();
